Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

The nuclide having maximum value of binding energy per nucleon is

Options:

${ }_{13}^{27} Al$

${ }_{92}^{238} U$

${ }_{26}^{56} Fe$

${ }_{82}^{208} Pb$

Correct Answer:

${ }_{26}^{56} Fe$

Explanation:

The correct answer is Option (3) → ${ }_{26}^{56} Fe$

As we analyse the graph of Binding Energy per nucleus vs the Atomic Number.

One observe that the binding energy per nucleon increases until it reaches a peak at iron (Fe), which has an atomic number of 26. After this peak, the binding energy per nucleon starts to decrease.